Brake or stop device for sound-reproducing machines



I $.-L. SCHIFF. BRAKE OR STOP DEVICE FOR SOUND REPRODUCING MACHINES.

APPLICATION FILED APR. 19, 1920- Patented Nov. 29, 1921.

WW I S. L. SCHIFF.

BRAKE 08 STOP DEVICE FOR SOUND REP ICING MACHINES- APPLICATION FlLEDAPR. 19, 1 920. I

Patented Nov. 29, 1921.

3 SHEETS-SHEET 2- I /e f" M SamueZL, S'a/z'iff U'Ni'if 1 sA L so IIEE,OF CHICAGO, ILLINoIs, Ass GNoE TQ VITANOLA TALKING MACHINE ooMPAN ocrrrcaeo, ILLINoIs, A con-rona'rrolv 'o ILL NOIS.

BRAKE on sror DEVICE on SOUND-REPRODUCINGMACHINES.

Specification ofLetters Patent. Patented NOV. 29, 1 921;

Application filed April 19, 1920. Serial No. 324,831.

To all whom it may concern:

Beit known that I, SAMUEL L. SGIIIIT, a citizen ofthe United States,residing at Chicage, in the county of Cook and Stateof Illinois, haveinvented certain new and usetul Improvements in Brake or Stop Devicesfor Sound-Reproducing Machines,' of which the following is aspecification..-

This invention relates to an attachment for sound reproducing machinesembodying improved means for causing an automatic engagement of? a brakemember or device with a movable part, such as the turn table of themachine for stopping the same at the end or" a piece or record beingplayed, and also embodying means whereby the device may at will beadaptedor set relatively to the number 01. convolutions on the recordsso that the operation of the device may be varied to accommodate piecesof different lengths.

A further object is to provide an improved device of this characterembodying means whereby the same may be automatically rendered active orinactive by the action or the tone arm respectively in predetermineddirections.

A further object isuto provide an improved, simple and compact device ofthis character which will be eitective, etficient and extremelysensitive in operation.

To the attainment of these ends and the accomplishment of other new anduseful objects as will appear, the invention consists in the features ofnovelty insubstantially the construction.combination and arrangement oithe several parts. hereinafter more iujlly described and claimed andshown in the accompanying drawings illustrating this invention and inwhichi Figure 1 is a top plan view oft-a device 01- this characterconstructed in accordance with the, principles of this invention withparts broken away and showing a portion of the tone arm in'section, alsoillustrating some of the parts in anadjusted position. I

Fig. 2 is a view similar to Fig. l-showing the parts ina differentposition.

Fig. is a. detail sectional view taken on line33.Fig. 1,

Fig,v 4 isa sectional view taken on line i 4 Fig.1.

Fig. 5-5 Fig. 1. i r

Fig. 6 is a sectional View taken on line 66 Fig. 1. 1 I

Fig; 7 is a detail perspective view of the tripping element.

Fig. 8 is a View similar to Fig.1 1 of av modified form of theinvention. I

Fig. 9.,is a sectional view taken on line 99ofFig.8. H Referring more;particularly to the drawmg the numeral '19 designates a base orsupporting plate upon which the parts are mountedand which plate-issecuredto the top or portion 11 of a sound reproducing machine. r

A brake device 12 is pivotally mounted intermediate its ends as at 13upon the plate and thebrake is providedwith a portion 5 is a sectionalview taken on line 1-1- adaptedto engage the'inner face of a vperipheral rim on .the revolvingsupport or table 15 of the machine.Pivotally mounted also upon the plate 10 and intermediate its ends as at16 is a, latch device 17 having a curved. surface 18 adjacent which theextremity 19t of the brake 12 is adapted to move, and this latch 17 isprovided with a recess 20 afdapted to receive the end 19 of the brake 12when'the parts. are in a predetermined position with respect to eachotl1er.- d

An elastic member21fisuch as a coil spring is anchored, by one end as at22 to the latcli' 17 and to one side 0]": the pivot thereof, while theother end of the elastic member 21 is anchored as at 23 to the brake 12to one side of its pivot. This elastic member 21; tends normally to movethe brake 12 in a direction to-cause the portion 14 to become effectivemove the latch 17 into an effective position. .IIn indicator 24 ispivotally mounted by one end as at 25 upon the plate 10 and the pivot isof such a nature that it will trio length. and configuration andispreferably provided with a pointer 26 one end ad'aptupon the moving.-part and also tends to V tained by friction in any of its adjustedpositions. This indicator together with the adjustment thereof isdesigned for the purpose of causing the latch 17 to be tripped at anydesired point with relation to the travel of the needle or stylus in thegroove of the record to automatically release the brake 12 and stop therecord support. To that end there is provided a tripping element 30which may be of any desired size and configuration. This element 30 issuperimposed upon the indicator 24 and is provided with a dependingfinger or projection 31 to hold it spaced from the indicator. One end ofthe tripping element is preferably deflected as at 32 and is providedwith a surface or edge 33 for a purpose to be set forth. One end of thelatch 17 projects over the indicator 24 and preferably terminatesadjacent the pivot of the latter and the latch is preferably pro videdwith an upright pin 34 adapted to project into anupright tubular portion35 carried by the tripping element 30 and by means of which tubularportion 35 and pin 34 the latch and tripping element will be pivotallyconnected. The tripping element .30 is con-- nected with the indicator24 for movement therewith and for movement with respect theretopreferably by means of a pin 36 and slot 37 connection, the slot beingprovided in the tripping element 30 so that the pin 36 will passtherethrough and engage the inclicator 24. The pivot 25 of the indicatorand the pivotal connection between the trippmg element 30 and latch 17are in different ver- 1 tical planes and are preferably in closeproximity to each other. WVith this construction it will be manifestthat when the indicator 24 is moved about its pivot the tripping element30 will also be moved with the indicator and will also be movedrelatively to the latch 17 and about the point of pivotal connectionwith the latch 17 the pin and slot connection 36 37 permitting suchmovement without moving the latch 17 about its pivot 16.

The pin and slot connection also permits "the tripping element 30 to bemoved relatively with relation to the indicator 24 to shift the latch'17 about its pivot 16 and against the stress of the elastic member 21to release the brake 12 so that the elastic element will move the brakefrom the position finger 38 which is connected in any suitable mannerwith a tone arm 39. The finger 38 is so disposed with respect to thetripping element 30 that when the tone arm is moved from the positionshown in Fig. 1 to the position shown in Fig. 2 it will engage thesurface 33 of the end 32 of the tripping element 30 and shift the latterwith respect to the indicator 24. This shifting movement of the trippingelement will swing the latch 17 about its pivot 16 in the manner justdescribed so as to move the recess 20 in the latch away from the end 19of the brake, to release the latter so that the flexible element 21 willcause the brake to become effective. In order to vary the time of theshifting operation of the finger 38 upon'the tripping element 30, toaccommodate pieces of vary .ing lengths, the indicator 24 may be shiftedto change the position of the surface 33 with respect to the path ofmovement of the finger 38 by the tone arm, such for instance as theposition shown in the dotted lines in Fig. 1 and in the manner alreadydescribed.

When the tone arm 39 is moved in a direction to cause the finger 38 tomove away from the surface 33 of the tripping element, the trippingelement may be moved in the opposite direction so as to cause the latch17 to assume a position to become effective with respect to the brake 12when the latter is moved into the position shown in Fig. 1.

This may be accomplished in any suitable of the brake and move thelatter about its )ivot. The extremity 44 of the other arm of the'bellcrank lever terminates adjacent the finger 38 on the tone arm and isadapted to be engaged by the finger to rock the lever 40 about its pivot41 to shift the brake. 12 from the position shown in Fig. 2 to theposition shown in Fig. 1, and against the stress of the elastic memberWhen the recess 20 in the latch 17 is adjacent the end 19 of the brake12 the elastic member 21 will cause the recess to pass over the end 19of the brake and lock the latter in an ineffective position. If desired;a suitable guide 45n1ay be provided for the arm- 42 of the settinglever.

With this improved censtructionit will be manifest that the apparatusmay be readily set to accommodate records of varymg lengths and will bevery sensitive in its operation. 1 1

If desired a stop 46 may be provided for limiting the movement of thebrake 12 about its pivot in one direction, and a similar stop 47 may beprovided for limiting the move ment of the setting lever l0 about itspivot inone direction. r

In Figs. 8 and 9 there is shown a modified form of the inventionand inthis term. of

the invention the latch a8, corresponding medium of the pin 34 carriedby the latch and tubular portion or sleeve 85 carried by "the trippingelement 30, and the latch is provided with a shoulder 50.

Thebr-ake element 51 is provided with a cushioning device 52 which isadapted to engage the flange of the disk supporting table 15 and thebrake element is pivotally supported as at 53 intermediate its ends andupon the base plate 10. The other end 5-1 of the brake element projectstoward the latch 48 and the extremity 55 01 the portion at of the brakeelement coijperates with the shoulder 50 of the latch 4-8 to lock orretain the brake element in an ineffective position. A coil spring 56 isanchored by one end as at 57 to the latch 48 and by its other end as at58 to an arm or extension 59 on the brake element 51. This elasticmember tends normally to move the brake element 51 into an effectiveposition and also tends normally to move the latch 4-8 about its pivot49 into a position that the shoulder 50 will be engaged by the extremity55 of the portion 5a of the brake. The arm 59 projects for any desireddistance from the brake element 51 and is so arranged that its extremity60 will terminate in the path of movement of the'a'rm or projection 38on the tone arm 39 so that when the tone arm is moved toward the rightin Fig.8 from the position shown in Fig. 2, the arm or finger 38 willengage the extremity 60 of the arm 59 and rock the brake about its pivot53 so as to move the cushion 52 away from the wall of the disk supportor into an ineffective position At the same tlme the extremity 55 of theportion 54 of the brake will be moved against the latch- 48 to shift thelatter about its pivot 49 against the tension of the spring 56 so thatthe extremity 55 01" the brake element will pass beyond the shoulder 50of the latch. slightly to'the left in Fig. 8 from the position shown,the brake element 51 will, under the tension of the spring 56, move in adirec tion to cause the extremity 55 to engage the between the trippingelement 30 and the When the tone arm is moved indicator arm 24 willpermit of such movement.

With this form of the invention it will be manifest that the brake andthe setting ele-' ment are combined as a single unit and the number ofparts in the form of the invention shown in Figs. 1 and 2 will bematerially reducedj V i While the preferred form of the invention hasherein been shown and described, it is to be understood that variouschanges may be made in the details of construction and in thecombination and arrangement of the several parts within the scope of theclaims without departing from the spirit oi? this invention.

Whatis claimed as newisz- 1. In combination with a rotatable part of aphonograph or the like, a pivotally mounted brake therefor, meanstending normallyto render the brake effective, a latch adapted tocotiperate with the brake for maintaining the brake inefi ective, atripping element for shifting the latch to release the brake to permitthe latter to become effective, means operatively related to the tonearm for actuating the tripping element, and an indicator for setting thetripping element to vary the time of actuation of the latch by the saidtripping element with respect to the degree of movement'of the tone arm,the said latch being operatively connected-with the said indicatorthrough the medium of the-"said tripping element.

Z'In' combination with a rotatable part of a phonograph or the like, apivotally mounted brake theretonimeans tending normally to renderthebrake effective, a latch adapted to cotiperatei with the brake formaintaining the brake ineffective, a tripping element'for shifting thelatch to release the brake to permit the latterto become efi'ective,means operativelyrelated to the tone arm for actuating the trippingelement, and an indicator for setting the tripping ele-: ment to varythe time of actuation of the latch by the saidtripping element with respect to the degree of movement of the tone" arm, the saidtrippingelement being movable with and with" respect" to the said indicator,thesaid latch operatively connected with the said indicator throu gh themedium of the said tripping element. r

3'. In combination with a rotatable part of a phonograph or the" like,apivotally mounted brake therefor, means tending nor- 'mally to renderthe brake effective, a'latch adapted to 'coiiperate with the brake formaintaining the-brake ineffective,- a-pivotally mounted indicator, and.a tripping element mounted upon the indicatorffor movement therewith andwith respect thereto, the said latch being operatively connected withthe indicator through the medium. of the said tripping element, the movement'of the said tripping element with respect to the said indicatoroperating to actuate the latch to release the brake, and the movement ofthe tripping element with the indicator operating to accommodate recordsof varying lengths.

4. In combination with rotatable part of a phonograph or the like, apivotally mounted brake therefor, means tending normally to render thebrake effective, a latch adapted to cooperate with the brake formaintaining the brake ineffective, a pivotally mounted indicator, atripping element mounted upon the indicator for movement therewith andwitl respect thereto, means pivotally connecting the latch and saidtripping element, the movement of the said tripping element with respectto the said indicator operating to actuate the latch to release thebrake, and the movement of the tripping element with the indicatoroperaing to accommodate records of varying lengths, and. means forrendering the said latch effective with respect to the brake.

5. In combination with a rotatable part of a phonograph or the like, apivotally mounted brake therefor, means tending normally to render thebrake effective, a latch adapted to cotiperate with the brake formaintaining the brake ineffective, a pivotally mounted indicator, atripping element mounted upon the indicator for movement therewith andwith respect thereto, means pivotally connecting the latch and saidtripping element, the movement of the said tripping element with respectto the said indicater operating to actuate the latch to release thebrake, and the movement of the tripping element with the indicatoroperat ing to accommodate records of varying lengths, and meansoperatively related to the tone arm for shifting the brake to render thelatch effectivewith respect to the brake.

6. in combination with a rotatable part of a phonograph or the like, apivotally mounted brake therefor, means tent ing normally to render thebrake effective, a latch adapted to coiiperate with the brake formaintaining the brake ineffective, a pivot ally mounted indicator, atripping element mounted upon the indicator for movement therewith andwith respect thereto, an operative connection between the latch and saidtripping element, the movement of the said tripping element withrespect'to the said indicator operating to actuate the latch to releasethe brake, and the movement of the tripping element with the indicatoroperating to accommodate records of varying lengths, and a setting leveradapted to operate upon the brake to shift the latter to render the saidlatch effective with respect to the brake.

7. In combination with a rotatable part .of a phonograph or thelike, apivotallyi ing to accommodate records of varying lengths, a bell cranklever separate from and adapted to shift the brake to render the brakeineffective and the latch effective with relation to the brake, andmeans operatively related to the tone arm for actuating the bell cranklever. v

8. in combination, a movable element, a brake for said element,meanstending normally to render the brake effective, a latch for holdingthe brake ineffective, a tripping element for actuating the latch torelease the brake element, means operable upon the tripping element toautomatically actuate the latter, an adjustable indicator, meansoperably connecting the said tripping ele ment with the indicator formovement therewith and with respect thereto, and means pivot-allyconnecting said latch with the said tripping element whereby the latchwill be actuated by the movement of the tripping element with respect tothe said indicator, the movement of the tripping element with theindicator operating to vary the time of movement of the tripping elementwith respect to the said indicator.

9. ln combinatioma movable element, a brake for said element, meanstending normally to render the brake effective, a latch for holding thebrake ineffective, a tripping element for actuating the latch to releasethe brake element, means operable upon the tripping element toautomatically actuate the latter, an adjustable indicator, means oerably connecting the said tripping element with the indicator formovement therewith and with respect thereto, said latch being operableby the movement of he said the tripping element with respect to tindicator, he movement'of the tripping element with the'indicatoroperating to vary the time of movement of the tripping element withrespect to the said" indicator, and a setting lever operable upon braketo render the latter ineffective and to establish an effective relationbetween the brake and latch, the second recited means also operating toactuate the said setting lever.

10. In combination, a movable element, a brake for said element, meanstending nor mally' to render the brake effective, a latch for holdingthe brake ineffective, a tripping ping element being mounted upon thesaid indicator for movement with respect there-' to and in a planeparallel thereto to actuate the latch to .release the brake 'to permitthe latter to become effective, and means operable upon the trippingelement to automatically actuate the latter, the said tripping elementbeing also movable with and in the same direction as the indicator.

11. In combination, a movable element, a brake for said element, a latchfor holding the brake ineffective, yielding means common to the brakeand latch and tending normally to render them both effective, a trippingelement for actuating the latch against the stress of the first recitedmeans to release the brake, means operable upon the tripping element toautomatically actuatethe latter, an adjustable indicator, means operablyconnecting the said tripping element with the indicator for movementtherewith and with respect thereto, and means pivotally connecting thesaid latch with the tripping element and operable by the movement of thetripping element with respect to the indicator, the movement of thetripping element with the indicator .operating to vary the time 01movement otthe tripping element with respect to the inclicator.

12. In combination, a movable element, a brake for said element,apivotally mounted latch for maintaining the'brake inefl'ective, meanstending normally-to maintain the brake effective, apivotally mountedindicator, a tripping element mounted upon the indicator for movementtherewith and with respect thereto, means pivotally connecting the saidtripping element with the,

said latch, whereby the movement of the said indicator will cause thetripping ele ment to move therewith and about its point of pivotalconnection with the latch, and means whereby the said tripping elementmay be moved with respect to the said indicator to move the said latchabout the pivot of the latter.

13. In combination, a movable element, a brake for said element, apivotally mounted latch for maintaining the brake ineffective, meanstending normally to maintain the brake effective, a pivotally mountedindicator, a tripping element mounted upon the indicator for movementtherewith and with respect thereto, means pivotally connecting the saidtripping element with the said latch, whereby the movement of the said.indicator will cause the tripping element to move therewith and aboutits point of pivotal connection with the'latch, and means whereby thesaid tripping element may be moved with respect to the said indicator tomove the said latch about the pivot of the latter, the pivot of the saidindicator and tripping element and the latch being separate fromeachother.

14%. In combinatioma movable element, a brake for said element, avpivotally mounted latch for maintaining the brake ineffective, meanstending normally to maintain the brake effective, apivotally mountedindicator, a trippingelement mounted upon the indicator for movementtherewith and with respect thereto, means pivotally connecting the-saidtripping element with the said latch, whereby the movement of the saidindicator will Cause the tripping elementto'move therewith and about itspoint of pivotal connection with the latch, and means whereby the saidtripping element may be movedwith respect to the said indicator to movethe said latch about the pivot of the latter, the pivot of the saidindicatorand the point oi pivotal connection between the trippingelementand the latch being separate from each other but arranged indifferentver tical planes in close proximity to each other 15. Incombination, a movable element, a brake for said element, a pivotallymounted latch for maintaining the brake ineffective, means tending,normally to maintain the brake effective, a pivotally mountedindica-tor, a tripping element mounted upon the indicator for movementtherewith and ?with respect thereto, means pivotally connectin the saidtripping element :with the "said latch, whereby the movement of'the saidindicator will cause the tripping element to 'move therewith and aboutits point ofpivotal connection with the latch, means whereby the saidtripplng element'may be moved with respect to the said indicator tojmovethe point of pivotal connection between-the the-said tripping elementwith the said latch, whereby the movement of the said indicator willcause the tripping element to move therewith and about its point ofpivotal connection with the latch, means whereby the said trippingelement may be moved with respect to the said indicator to'move the saidlatch about the pivot of the latter, and a bell crank lever operableupon the." brake to render the latter ineffective with respect to thefirst recited element and efi'ec- 'tive with respect to the said latch,the last recited means being operable upon the lever to actuatethelatter and embodying an arm having a path of movement between thesaid lever and the said tripping element.

17. In combination, a movable element, a brake for said element, apivotally mounted latch for maintaining the brake ineffective, meanstending normally to maintain the brake effective, a pivotally mountedindicator, a tripping element mounted upon the indicator for movementtherewith and with respect thereto, means pivotally connecting the saidtripping element with the said latch, whereby the movement of the saidindicator will cause the tripping element to move therewith and aboutits point of pivotal connection with the latch, means whereby the saidtripping element may be moved with respect to the said indicator to movethe said latch about the pivot of the latter, and a base platesupporting all of said parts.

18. In combination, a movable element, a brake for said element, meanstending normally to render said brake effective, a latch for holding thebrake ineffective, a tripping element, an adjustable indicator, saidtrip ping element being movable with and with respect to the indicator,means for movingthe tripping element with respect to the in dicator totrip the latch to release the brake, and an arm connected with the brakefor moving the brake into a position that the latch will becomeeffective.

7 19. In combination, a movable element, a brake for said element, meanstending normally to render said brake effective, a latch for holding thebrake ineffective, a tripping element, an adjustable indicator, saidtripping element being movable with and with respect to the indicator,means for moving the tripping element with respect to the indicator totrip the latch to release the brake,

and an arm connected with the brake and adapted to be operated upon bythe SBCOHQ recited means for moving the brake into a position that thelatch will become effective.

20. In combination, a movable element, a pivoted brake for said element,means tending normally to render said brake effective, a pivoted latchwith which a portion of the brake cooperates whereby the brake will beheld ineffective, a tripping element, an adjustable indicator, saidtripping element being movable with and with respect to the indicator,means pivotally connecting the latch and tripping element, means formoving the tripping element with respect to the indicator to trip thelatch, and an arm connected with the brake element for moving the brakeelement about its pivot to render the brake ineffective and the latcheffective.

21. In combination, a movable element, a pivoted brake for said element,means tending normally to render said brake effective, a pivoted latchwith Which a portion of the brake cooperates whereby the brake will beheld ineffective, a tripping element, an adjustable indicator, saidtripping element being movable with and with respect to the indicator,means pivotally connecting the latch and tripping element, means formoving the tripping element with respect to the indicator to trip thelatch, and an arm connected with the brake element for moving the brakeelement about its pivot to render the brake ineffective and the latcheffective, the last recited means embodying an arm carried by the tonearm and also operable upon the said arm to actuate the latter.

In testimony whereof I have signed my name to this specification, onthis 12th day of April, A. D. 1920.

SAMUEL L. SCHIFF.

